1 /* 2 * Copyright (c) Meta Platforms, Inc. and affiliates. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.facebook.ktfmt.debughelpers 18 19 import org.jetbrains.kotlin.com.intellij.psi.PsiElement 20 import org.jetbrains.kotlin.psi.KtTreeVisitorVoid 21 22 class PrintAstVisitor : KtTreeVisitorVoid() { 23 private var depth = 0 24 visitElementnull25 override fun visitElement(element: PsiElement) { 26 print(" ".repeat(depth)) 27 println("${element.javaClass.simpleName} ${element.text?.replace("\n", "\\n")}") 28 depth++ 29 super.visitElement(element) 30 depth-- 31 } 32 } 33